Pushing image transport logic down the stack

Alan Cox alan at lxorguk.ukuu.org.uk
Sun Sep 3 15:50:07 PDT 2006


Ar Sul, 2006-09-03 am 17:16 -0400, ysgrifennodd Owen Taylor:
>  - A copy from and format conversion from your own data to the 
>    shm buffer
>  - A copy from the shm buffer onto the destination drawable

That's an X implementation limitation. Given kernel support it is
perfectly possible to pin those pages and a kernel drive let a video
card DMA those shm buffer pages.





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